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`A = ( "c" ^2 * sin( beta ) * sin( alpha )) / (2 * sin( 360^o - alpha - beta )`
Enter a value for all fields
The Area of a Triangle Based on Two Angles and the Interior Side calculator computes the area of a triangle given the measurement of two of the triangle’s angles and the dimension of the interior side.
INSTRUCTIONS: Choose units and enter the following: :
- (α) Angle 1
- (β) Angle 2
- (c) Length of Side in between them.
Area of a Triangle (A): The calculator computes the area of the triangle in square meters (m2). However, this can be automatically converted to other area units (e.g. square feet) via the pull-down menu.
The Math / Science
The formula for the area of a triangle based on two angles and the length of the side in between them is:
`A = (c^2 * sin(β) * sin(α)) / (2 * sin( 2π - α - β)`
where:
- A = Area of triangle
- α = one interior angle
- β = second interior angle
- c = length of side between angles
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